framework/cg/blender/utils/apply_transforms.py

60 lines
2.4 KiB
Python

# -*- coding: utf-8 -*-
# original idea from https://github.com/machin3io/MACHIN3tools
# Copyright (C) 2023 Ilia Kurochkin <brothermechanic@gmail.com>
#
# -*- coding: utf-8 -*-
# Copyright 2023 by brothermechanic. All Rights Reserved.
# Based on https://github.com/machin3io/MACHIN3tools/blob/master/operators/apply.py
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
__version__ = "0.2"
from mathutils import Matrix, Vector, Quaternion
def apply_transforms(obj, location=False, rotation=False, scale=False):
""" bake local object transforms """
def get_loc_matrix(location):
return Matrix.Translation(location)
def get_rot_matrix(rotation):
return rotation.to_matrix().to_4x4()
def get_sca_matrix(scale):
scale_martix = Matrix()
for i in range(3):
scale_martix[i][i] = scale[i]
return scale_martix
if location and rotation and scale:
loc, rot, sca = obj.matrix_world.decompose()
mesh_martix = get_loc_matrix(loc) @ get_rot_matrix(rot) @ get_sca_matrix(sca)
obj.data.transform(mesh_martix)
apply_matrix = get_loc_matrix(Vector.Fill(3, 0)) @ get_rot_matrix(Quaternion()) @ get_sca_matrix(Vector.Fill(3, 1))
obj.matrix_world = apply_matrix
else:
if location:
raise Exception("Location only applies with all transformations (rotate and scale) together!")
if rotation:
loc, rot, sca = obj.matrix_world.decompose()
mesh_martix = get_rot_matrix(rot)
obj.data.transform(mesh_martix)
apply_matrix = get_loc_matrix(loc) @ get_rot_matrix(Quaternion()) @ get_sca_matrix(sca)
obj.matrix_world = apply_matrix
if scale:
loc, rot, sca = obj.matrix_world.decompose()
mesh_martix = get_sca_matrix(sca)
obj.data.transform(mesh_martix)
apply_matrix = get_loc_matrix(loc) @ get_rot_matrix(rot) @ get_sca_matrix(Vector.Fill(3, 1))
obj.matrix_world = apply_matrix
obj.rotation_mode = 'XYZ'